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The OE fans are much better than most aftermarket... and lower cost than the top end aftermarket. The Chevy HHR fan is supposed to be good. Available from a Chevy dealer or several knock-off's on the web.

PS... the belt driven thermal clutch fan with shroud works really well. And has no added electrical loads and wiring... but you asked about electric.



The OEM HHR fan? Coincidentally I work in the service department at a chevy dealer, I'll have to check pricing on that tomorrow! How are they getting wired up? some aftermarket thermostatic switch?



The HHR fan or just about any other electric would be wired through an aftermarket switch and relay. A standard 30 amp relay will be marginal for a high capacity unit like the HHR fan. Use two relays or buy a bigger single relay. Summit and others offer several kits with various types of temp sensors and fuse/breaker choices. Some have adjustable setpoints. The big relay or the double relay may require modification of the kits. Use 10 guage wire for the power feed wires. 16 or even 18 will work fine for the relay control wires.